True, but we aren't comparing a 1 to 0 or 1 to 2. Its 238 to 19. sqrt(238)=+/-15 sqrt(19)=+/-4 (if the numbers are to be believed) . 238/19=12.5 (238-15)/(19

True, but we aren't comparing a 1 to 0 or 1 to 2. Its 238 to 19. sqrt(238)=+/-15 sqrt(19)=+/-4 (if the numbers are to be believed) . 238/19=12.5 (238-15)/(19+4)=9.7 so it becomes 20% less on the lower end of the fluctuation which is only nominal.